/******************** (C) COPYRIGHT 2018 merafour ********************
* Author             : 冷月追风@merafour.blog.163.com
* Version            : V2.0.0
* Date               : 22/8/2018
* Description        : MusicPlay 数据处理类.
********************************************************************************
* merafour.blog.163.com
* merafour@163.com
* github.com/Merafour
*******************************************************************************/
#include "Firmware.h"
#include <QDebug>
#include <QThread>

#include <stdio.h>

const uint32_t Firmware::code_size_max = 2*1024*1024; // 2MB
const uint32_t Firmware::crctab[] = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d };
const uint8_t Firmware::crcpad[] =  { 0xff, 0xff, 0xff, 0xff };
uint32_t Firmware::crc32tab[256] = {
    0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
    0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
    0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
    0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
    0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
    0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
    0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
    0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
    0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
    0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
    0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
    0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
    0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
    0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
    0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
    0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
    0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
    0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
    0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
    0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
    0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
    0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
    0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
    0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
    0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
    0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
    0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
    0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
    0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
    0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
    0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
    0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d };

Firmware::Firmware()
{
    imagebyte = nullptr;
    _image_size = 0;
    imagebyte = (char*)malloc(code_size_max); // 2M
    if(NULL == imagebyte)
    {
        qDebug() << "malloc space fail!";
    }
    board_id = 1;
    board_revision = 1;
}

const Firmware* Firmware::ProcessFirmware(const char *path)
{
    size_t _size=0;
    FILE *fp = NULL;
    // read code
    fp = fopen(path, "rb");
    if(NULL == fp)
    {
        qDebug() << "Unable to open" << path;
        goto bad;
    }
    fseek(fp, 0, SEEK_END);
    _image_size = ftell(fp);
    if(0!=fseek(fp, 0, SEEK_SET))
    {
        qDebug() << "Unable to SET" << path;
        goto bad;
    }
    qDebug() << "_image_size:" << _image_size;
    //if(NULL != code) free(code);
    if(NULL == imagebyte) imagebyte = (char*)malloc(code_size_max);
    if(NULL == imagebyte)
    {
        qDebug() << "malloc space fail!";
        goto bad;
    }
    memset(imagebyte, 0xFF, code_size_max);
    _size = fread(imagebyte, 1, _image_size, fp);
    //_size = fread(imagebyte, _image_size, 1, fp);
    qDebug() << "_size:" << _size;
    if(_size != _image_size)
    {
         qDebug() << "read fimware fail" ;
         goto bad;
    }
    fclose(fp);
    //_image_size = _image_size + (_image_size % 4);
    _image_size = _image_size + 1024 + 1024 - (_image_size % 1024);
    qDebug() << "_image_size:" << _image_size;
    //connect(port, SIGNAL(readyRead()), this, SLOT(recSerialData())); // 连接串口收到数据事件与读取数据函数
    return this;
bad:
    fclose(fp);
    return NULL;
}

const Firmware* Firmware::ProcessFirmware(QString path)
{
    return ProcessFirmware(path.toLocal8Bit().constData());
}

const Firmware *Firmware::ProcessFirmware(const QString rtttl, const QString melody, const QString octave, const QString durations)
{
    uint32_t len=0;
    uint32_t pos=0;
    const char* text=NULL;
    if(NULL == imagebyte) imagebyte = (char*)malloc(code_size_max);
    if(NULL == imagebyte)
    {
        qDebug() << "malloc space fail!";
        goto bad;
    }
    memset(imagebyte, 0, code_size_max);
    pos=0;
    text = rtttl.toLocal8Bit().constData();
    len = strlen(text);
    memcpy(&imagebyte[pos], text, len);
    pos += len;
    imagebyte[pos++] = '\n';
    text = melody.toLocal8Bit().constData();
    len = strlen(text);
    memcpy(&imagebyte[pos], text, len);
    pos += len;
    imagebyte[pos++] = '\n';
    text = octave.toLocal8Bit().constData();
    len = strlen(text);
    memcpy(&imagebyte[pos], text, len);
    pos += len;
    imagebyte[pos++] = '\n';
    text = durations.toLocal8Bit().constData();
    len = strlen(text);
    memcpy(&imagebyte[pos], text, len);
    pos += len;
    imagebyte[pos++] = '\n';
    _image_size = pos;
    memset(&imagebyte[_image_size], 0, code_size_max-_image_size);
    _image_size = _image_size + 64 + 64 - (_image_size % 64); // 64字节对齐
    qDebug() << "_image_size:" << _image_size;
    return this;

bad:
    return NULL;
}

uint32_t Firmware::__crc32(const uint8_t bytes[], const uint32_t lenght, uint32_t state)
{
    uint8_t data;
    uint32_t len=0;
    //foreach (byte data in bytes)
    for(len=0; len<lenght; len++)
    {
        data = bytes[len];
        uint32_t index = ((state ^ data) & 0xff);
        state = crctab[index] ^ (state >> 8);
    }
    return state;
}

int Firmware::crc(const int padlen)
{
#if 0
    uint32_t state = __crc32((const uint8_t*)imagebyte, _image_size, 0);
    for (int i = _image_size; i < (padlen -1); i += 4)
    {
        state = __crc32(crcpad, 4, state);
    }
#else
    uint32_t state = __crc32((const uint8_t*)imagebyte, padlen, 0);
#endif
    return (int)state;
}

int Firmware::crc32(const int padlen)
{
#if 0
    uint32_t state = _crc32((const uint8_t*)imagebyte, _image_size, 0);
    for (int i = _image_size; i < (padlen -1); i += 4)
    {
        state = _crc32(crcpad, 1, state);
    }
#else
    //imagebyte[padlen+1] = 0;
    //qDebug() << "imagebyte:" << QString::fromLocal8Bit(imagebyte);
    //printf("imagebyte:%s", imagebyte);
    qDebug() << "padlen:" << padlen;
    //uint32_t state = _crc32((const uint8_t*)imagebyte, padlen, 0);
    uint32_t sum = 0;
    int p = 0;
    for (p = 0; p < padlen; p += 4) {
        sum = _crc32((const uint8_t *)&imagebyte[p], 4, sum);
        //qDebug("sum[%03d]\t:0x%08X %02X %02X %02X %02X", p, sum, imagebyte[p], imagebyte[p+1], imagebyte[p+2], imagebyte[p+3]);
    }
#endif
    return (int)sum;
}

uint32_t Firmware::_crc32(const uint8_t *src, unsigned len, unsigned state)
{
    /* check whether we have generated the CRC table yet */
    /* this is much smaller than a static table */
    if (crc32tab[1] == 0) {
        for (unsigned i = 0; i < 256; i++) {
            uint32_t c = i;

            for (unsigned j = 0; j < 8; j++) {
                if (c & 1) {
                    c = 0xedb88320U ^ (c >> 1);

                } else {
                    c = c >> 1;
                }
            }

            crc32tab[i] = c;
        }
    }

    for (unsigned i = 0; i < len; i++) {
        state = crc32tab[(state ^ src[i]) & 0xff] ^ (state >> 8);
    }

    return state;
}

